package com.heima.article.service.impl;

import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.heima.article.mapper.ApArticleConfigMapper;
import com.heima.article.mapper.ApArticleContentMapper;
import com.heima.article.mapper.ApArticleMapper;
import com.heima.article.service.ApArticleService;
import com.heima.article.service.ArticleFreemarkerService;
import com.heima.common.constants.ArticleConstants;
import com.heima.model.article.dtos.ArticleDto;
import com.heima.model.article.dtos.ArticleHomeDto;
import com.heima.model.article.pojos.ApArticle;
import com.heima.model.article.pojos.ApArticleConfig;
import com.heima.model.article.pojos.ApArticleContent;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.Date;
import java.util.List;

@Service
@Slf4j
@Transactional
public class ApArticleServiceImpl extends ServiceImpl<ApArticleMapper, ApArticle> implements ApArticleService {

    private static final Short MAX_PAGE_SIZE = 50;

    @Autowired
    private ApArticleMapper apArticleMapper;

    @Autowired
    private ApArticleConfigMapper apArticleConfigMapper;

    @Autowired
    private ApArticleContentMapper apArticleContentMapper;

    @Autowired
    private ArticleFreemarkerService articleFreemarkerService;

    /**
     * 文章加载列表
     *
     * @param dto
     * @param type 1.加载更多  2.加载最新
     * @return
     */
    @Override
    public ResponseResult load(ArticleHomeDto dto, Short type) {

        // 1.检验参数

        // 分页条件的检验
        Integer size = dto.getSize();
        if (size==null || size==0)
            size = 10;

        // 分页的值不能超过50
        size = Math.min(size,MAX_PAGE_SIZE);

        // type参数校验
        if (!type.equals(ArticleConstants.LOADTYPE_LOAD_MORE) && !type.equals(ArticleConstants.LOADTYPE_LOAD_NEW))
            type = ArticleConstants.LOADTYPE_LOAD_MORE;

        // 频道参数校验
        if (StringUtils.isBlank(dto.getTag()))
            dto.setTag(ArticleConstants.DEFAULT_TAG);

        // 时间校验
        if (dto.getMaxBehotTime() == null)
            dto.setMaxBehotTime(new Date());
        if (dto.getMinBehotTime() == null)
            dto.setMinBehotTime(new Date());

        // 2.查询数据
        List<ApArticle> apArticles = apArticleMapper.loadArticleList(dto, type);

        // 3.结果封装
        return ResponseResult.okResult(apArticles);
    }

    /**
     * 保存App端相关文章
     * @param dto
     * @return
     */
    @Override
    public ResponseResult saveArticle(ArticleDto dto) {
//        try {
//            Thread.sleep(3000);
//        } catch (InterruptedException e) {
//            e.printStackTrace();
//        }
        // 1.检查参数
        if (dto == null)
            return ResponseResult.errorResult(AppHttpCodeEnum.PARAM_INVALID);

        ApArticle apArticle = new ApArticle();
        BeanUtils.copyProperties(dto,apArticle);
        // 2.判断是否存在文章id
        if (dto.getId() == null){
            // 2.1 不存在id 保存文章、文章配置、文章内容
            // 保存文章
            save(apArticle);
            // 保存配置
            ApArticleConfig apArticleConfig = new ApArticleConfig(apArticle.getId());
            apArticleConfigMapper.insert(apArticleConfig);
            // 保存内容
            ApArticleContent apArticleContent = new ApArticleContent();
            apArticleContent.setArticleId(apArticle.getId());
            apArticleContent.setContent(dto.getContent());
            apArticleContentMapper.insert(apArticleContent);
        }else {
            // 2.2  存在id 修改文章 文章内容
            // 修改文章
            updateById(apArticle);
            // 修改文章内容
            ApArticleContent apArticleContent = apArticleContentMapper.selectOne(Wrappers.<ApArticleContent>lambdaQuery().eq(ApArticleContent::getArticleId, dto.getId()));
            apArticleContent.setContent(dto.getContent());
            apArticleContentMapper.updateById(apArticleContent);
        }

        // 异步调用 生成静态文件上传到minio中
        articleFreemarkerService.buildArticleToMinIO(apArticle, dto.getContent());

        // 3.结果返回 文章id
        return ResponseResult.okResult(apArticle.getId());
    }
}
